Why does Sugar act as retarder in concrete ?

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Kundan Raj Parajulee

Thank you so much Nirmala S.V.S.G

ma'am for the answer. This helped much.

Yonathan Reches

Nirmala S.V.S.G

has put it very well. May I add: surface reactions related to the dissolution and re-precipitation are extremely complex and often the mechanisms are not exactly known or not quantifiable using known methods. If you can develop a way to quantify these phenomena, I know we'd all be very grateful!

Yonathan Reches True. This might be a good topic to study on.

Sadanand Pandey

Following

Pawan Bhattarai

Adding water causes a chemical reaction called hydration, where hydrogen from the water combines with calcium, sulphate, aluminium and silicon from the cement.Sugar, however, is composed of carbon, oxygen and hydrogen atoms which can interfere with the hydration process by binding with the minerals and slow down the reaction.

Thank you Mr. Pawan Bhattarai for your lucid explanation.

Peshal Dahal

now according to pawan sir, everything except cement is a retarder. lol